@TechReport{	  it:2004-032,
  author	= {Malin Ljungberg and Kurt Otto},
  title		= {Curvilinear Coordinates in a {PDE} Solver Framework;
		  Validation},
  institution	= {Department of Information Technology, Uppsala University},
  department	= {Division of Scientific Computing},
  year		= {2004},
  number	= {2004-032},
  month		= aug,
  abstract	= {Through the use of object-oriented analysis and design
		  combined with variability modeling, a highly flexible
		  software model for the metrics handling functionality of a
		  PDE solver framework was obtained. This new model was
		  validated against usability goals, particularly with
		  respect to efficiency and flexibility. The method of
		  validation together with the results are presented here.
		  The efficiency of a pilot implementation is comparable to,
		  in parts even higher than, that of a pre-existing
		  application-specific reference code. With regards to
		  flexibility it is shown that the new software model
		  performs well for a set of four change scenarios selected
		  by an expert user group.}
}